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The difference between homopolymer polypropylene and copolymer polypropylene

The difference between homopolymer polypropylene and copolymer polypropylene

(Summary description)Polymerized from a single propylene monomer, it has the lowest density among common plastics, and its molecular chain regularity is very high, so the material has high crystallinity and poor impact performance.

The difference between homopolymer polypropylene and copolymer polypropylene

(Summary description)Polymerized from a single propylene monomer, it has the lowest density among common plastics, and its molecular chain regularity is very high, so the material has high crystallinity and poor impact performance.

Information

1 PP-H
Polymerized from a single propylene monomer, it has the lowest density among common plastics, and its molecular chain regularity is very high, so the material has high crystallinity and poor impact performance.
Advantages: good strength, good corrosion resistance.
Disadvantages: poor impact resistance (brittle), poor toughness, poor dimensional stability, easy aging, poor long-term heat resistance and stability, and poor barrier properties to gases such as oxygen and carbon dioxide.
Uses: It can be used for packing belts, bottle blowing, brushes, wrapping paper films, etc.
Distinguishing method: the wire is flat and not long when pulled by fire.

Polypropylene Homopolymer

2 PP-B
It is obtained by copolymerization of propylene and part of ethylene, and the ethylene content is generally 7-15%. However, since the probability of two ethylene monomers and three monomers being connected together in PP-B is very high, it means that only embedded ethylene monomers exist. In the segment phase, the regularity of PP-H is not reduced, so the purpose of improving the performance of PP-H melting point, long-term hydrostatic pressure resistance, long-term heat resistance and pipe processing and molding cannot be achieved.
Advantages: better impact resistance.
Disadvantages: low transparency, low gloss, poor moisture absorption resistance, acid and alkali corrosion resistance, solubility resistance and oxidation resistance at high temperatures.
Uses: For bumpers, thin-walled products, strollers, sports equipment, luggage, paint buckets, battery boxes, thin-walled products.
Identification method: It does not turn black after being ignited, and can pull out a very long round wire.
 

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Molding characteristics of 100% Virgin Toy Polypropylene china
Molding characteristics of 100% Virgin Toy Polypropylene china
100% Virgin Toy Polypropylene china has good molding performance, and can be used to produce different products by injection, extrusion, hollow blow molding, welding, thermoforming, machining, electroplating, foaming and other molding processing methods.
Detail
100% Virgin Toy Polypropylene china has good molding performance, and can be used to produce different products by injection, extrusion, hollow blow molding, welding, thermoforming, machining, electroplating, foaming and other molding processing methods.
Take you to know 100% Virgin Toy Polypropylene
Take you to know 100% Virgin Toy Polypropylene
100% Virgin Toy Polypropylene is a polymer produced by the polymerization of propylene and is a thermoplastic resin.
Detail
100% Virgin Toy Polypropylene is a polymer produced by the polymerization of propylene and is a thermoplastic resin.
polyethylene granules suppliers will show you about polyethylene granules
polyethylene granules suppliers will show you about polyethylene granules
Polyethylene granules, I believe many people have never heard of this term, so what is polyethylene granules? Next, polyethylene granules suppliers will show you about polyethylene granules.
Detail
Polyethylene granules, I believe many people have never heard of this term, so what is polyethylene granules? Next, polyethylene granules suppliers will show you about polyethylene granules.
Main process of Buy Polypropylene film
Main process of Buy Polypropylene film
Time of issue : 2023-03-06
Buy Polypropylene film processing is mainly divided into blowing process and flat film process. The flat film process is also divided into tape casting process and biaxial stretching process. The different processes have a great impact on the performance and application fields of Buy Polypropylene film products.
Detail
Buy Polypropylene film processing is mainly divided into blowing process and flat film process. The flat film process is also divided into tape casting process and biaxial stretching process. The different processes have a great impact on the performance and application fields of Buy Polypropylene film products.

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Time of issue:2022-08-06 11:27:16

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